Support for spinning-spindles



Patented July 30, 1889.

(No Model.)

W. F. DRAPER.

SUPPORT FOR SPINNING SPINDLES.

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UNITED STATES PATENT OFFICE.

VILLIAM F. DRAPER, OF HOPEDALE, MASSACHUSETTS.

SUPPORT 'FOR SPINNING-SPINDLES.

SPECIFICATION forming part of Letters Patent No. 408,166, dated July 30, 1889.

Application led May 17, 1889. -Serial No. 311,176. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM F. DRAPER, of I-Iopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Supports for Spinning-Spindles, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention has for its obj ect to simplify and improve spindle-bearings.

In my invention, as herein illustrated, the bolster and the step bearing are represented as made in separate parts, each acted upon by an independent spring, the tendency of the said springs being to sustain the said bolster and step bearings in equilibrium and loosely within a suitable supporting-case or holder.

Myinvention therefore consists, essentially, in the combination, with'a spindle, a supporting-case or holder, and a bolster and a step bearing, of springs acting upon both the bolster and step bearings to support them in substantial equilibrium and loosely within the said bolster case or holder, as will be hereinafter described.

The drawing, in partial elevation and section, represents a spindle and bearing therefor embodying my invention.

Referring to the drawing, the rail A has applied to it a sleeve B, which is held in place on the rail by a nut B. The sleeve B constitutes part of a supporting-case or holder, the other part thereof being represented as a tube (designated by the letter B2) attached by screw-threads or otherwise to the lower portion B2 of the supporting-case or holder. The upper rigid portion B2 has an independent lip or iiange a, herein represented as integral with the portion B2; but it may be made separate and attached by screw-threads or otherwise, so long as the said projection a is adapted to serve as a rest against which may bear the upper end of the spring b, which surrounds the bolster-bearing ZJ', the latter, as herein represented, having a shoulder or collar at its lower end, against which bears the lower end of the spring b.

The bolster-bearing for the pintle of the spindle D, the spindle having, as herein represented, a sleeve-whirl D', is represented as mounted loosely within the supporting-case or holder.

The supporting-case or holder receives, loosely, a step-bearing c, the lower end of which is surrounded by and supported upon a spring e', which may be of any usual shape or kind commonly employed to supporta step in a yielding manner within a supportingcase and so as to move with the lower end of the spindle. The upper end of the step-bearing e is represented as havinga flange or collar e2, which abuts against the iiange or collar at the lower end of the bolster-bearingh.

From the foregoing description it will be understood that the Weight of the spindle and step is received upon and borne by the spring e', and the bolster-bearing, acted upon by the spring is normally pressed toward and against the upper end of the step-bearing e. A bolster and step bearing having combined with them springs, as stated, are free to move both laterally and vertically to enable the spindle to find its true center of rotation, notwithstanding an unbalanced load or imperfections in the surface of the bolster and the step bearings.

I do not broadly claim supporting a stepbearing upon a spring.

I do not desire to limit my invention herein contained to the exact form of springs described, as the same may be shaped in any usual manner to also act as lateral cushions.

If desired, the lower end of the supportingcase or holder h may be provided with a bolt or nut of usual construction, the removal of which permits oil or sediment to be drawn out of the supporting-case, and in practice the bolster and step bearings will have usual holes for the circulation of oil, there being any suitable number of such holes.

I claiml. The combination,with asupporting-case or holder, a spindle, a step-bearing loose in the said supporting-case, and a spring to support it, of a bolster-bearin g and a spring acting upon it, to operate substantially as described.

2. A supporting-case or holder, astep-bear- IOC ing mounted therein loosely, and a spring to In testimony whereoflhave signed myname sustain the step-bearing, combined with a to this specification in the presence of two subbolster-bearing mounted loosely therein and seribing Witnesses.

a spring surrounding the said bolstenbearing WM. F. DRAPER. 5 and forcing it normally against the upper end Witnesses:

of the step-bearing, to operate substantially E. D. BANCROFT,

as described. H. F. SEARLEs. 

